package follow.pratice.in2020.November.javaguide.basis.demo1;

public class Case_3 {
    public Object show() {
        return 1;
    }
}


class Case_4 extends Case_3 {
    @Override
    public Object show() {
        return "123";
    }
}


class TestCa {
    public static void main(String[] args) {
        Case_3 case_4 = new Case_4();
        case_4.show();


    }

}
